组织细胞瘤多见于成年人,少数亦见于儿童。多发生于四肢皮肤、背部及头面部。笔者曾遇一例发生在牙龈的组织细胞瘤,报告如下: 患者:钟××,男、13岁。主诉:下颌牙龈处有一淡红色增生物,无痛,逐渐增大半年余。 检查:恒牙列,口腔卫生良好,无龈炎现象。43间颊侧龈处有约1×1.2cm大小的粉红色肿块,无蒂、基底 Histopathies more common in adults, a few also seen in children. Occurred in the limbs skin, back and head and face. The author has encountered a case of histiocytoma in the gums, the report is as follows: Patients: Bell × ×, male, 13 years old. Chief Complaint: There is a light red hyperplasia in the jaw gum, painless, gradually increasing more than six months. Check: permanent dentition, good oral hygiene, no gingivitis. 43 buccal gingival at a size of about 1 × 1.2cm pink lumps, pedicle, basal